Experiments in the Identification of Paints by Attenuated Total Reflectance

摘要

In order to obtain a spectrum of the nonvolatile vehicle of paint samples with infrared transmission spectrophotometry, the pigment must be separated from the vehicle. This separation is time consuming and costly; therefore, an investigation of the use of attenuated total reflectance was conducted to determine if it would eliminate the need to separate the pigment from the vehicle in order to obtain a qualitatively useful spectrum. This technique was shown to be effective in producing an infrared spectrum qualitatively similar in certain regions of the spectrum to that obtained by the conventional methods. (Author)